Piston pin



C. H. SNYDER PISTON PIN July 26 1927. 1,637,247

Original Filed Oct. 26, 1925 (kiffif 15 2234 3 WITNESS: AITO EY Patented July 26, 1927.

CALEB H. SNYD IlB, OF WINNSBORO, LOUISIAlTA.

PISTON PIN.

Application filed October 26, 1925, Serial No. 64,884. Renewed June 18, 1827.

use in connection with the above entitled wrist pin is the provision of disks and split rings arranged within the wrist pin openings in' a piston and engaging the opposite ends of the wrist pin when so arranged therein as to prevent the ends of the wrist pin from scoring the cylinder Walls and preventing the oil thus collected upon the wrist pin which is slashed upwardly within the piston and through openings provided in the upper end of the connecting rod and Wrist pin mountings for preventing the loss of oil and constantly keeping the wrist pin in a bath of oil.

With the above and other objects in view the i vention further inoludesthe "following nove features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawing and pointed out in the appended claim.

In the drawing:-

Fig'ure 1 is a vertical sectional view taken through a piston with my wrist pin mounting and showin the arrangement of the disks and split rings thereon.

Figure E2 is a fragmentary side elevation of a piston and ShOWIH the relative arrangement of the disk and? split ring arranged thereon.

Figure 3 is a detail perspective of a split rin B igure l is a similar view of a part of my disk.

Referring to the drawing in detail, where in like characters of reference denote eerie-- all ports 15 arranged in registration in order that the oil thus splashed within the crank case of an automobile, not shown, may be deflected within the top of the piston 10 and drain into the oil port 15. It is to be underthe sleeves 11 and abutting the outer ends of the wrist pin 16 while split rings 18 are arranged Within grooves 19 within'the openings of the sleeves 11 in order that these disks 17 may he held rigidly in their respective positions and preventing the wrist pin 16 from endwise movement within the bushings 1 1 in order that the same will be prevented from scoring the cylinder walls and also to prevent the oil which drains within the oil ports 15 from draining from the pis ton pin or wrist pin 16 and in order that the same will always be mounted and supported within a bath of oil and thus eliminating any noises owing to its triple bearing surface upon the respective bushings 14 arranged in the sleeves 11 and upper end of the connecting rod 13.

The advantage that'the floating piston pin has over the usual piston pinis that the floating piston pin being free and able to revolve and allowing the pin to Wear evenly on all sides whereas the other pins onl oscillate in the piston or the connecting ro oscillates on the pin and the pin soon wears out on the top side causing very noticeable knocks.

The invention is susceptible of various changes in its form, proportions and minor details oil construction and the right is here in reserved to make such changes as properly within the scope of the appended claim.

Having described my invention What is claimed i l wrist pin mounting of the de comp 'ng a piston having inwardly aniline sleeves arranged its inner sides having their inner arranged "relation, 2. connecting; rod having L a circular apertured upper end portion an ranged between the inner ends of the sleeves a plurality of bushings arranged within.

- sleeves and connecting rod and including re%istering oil ports therein for receiving the sp ashed oil, a pair of disks arranged at the opposite ends of the wrist pin within the bores of the sleeves, and s lit rings arranged immediately in advance 0? the disks for preventing their accidental displacement with- CALEB H. SNYDER. 

